Electrons in an X-Ray Machine Are Accelerated from Rest Through

question 17

Multiple Choice

Electrons in an x-ray machine are accelerated from rest through a potential difference of 50 000 V.What is the kinetic energy of each of these electrons in eV?

• A)50 eV
• B)80 eV
• C)330 eV
• D)50 keV

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Definitions:

Units of Labor

Measurements used to quantify the work input by labor forces, often referring to hours worked or number of workers.

Diminishing Returns

A principle stating that if one input in the production of a commodity is increased while all other inputs are held fixed, a point will eventually be reached at which additions of the input yield progressively smaller, or diminishing, increases in output.

Marginal Product Curve

A graphical representation that shows how the addition of one more unit of a resource to production affects the output of a product.

Total Product Curve

A graphical representation showing how the total quantity of output varies with changes in the quantity of a single input while other inputs are held constant.